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Laidler, David

Working Paper The interactive evolution of economic ideas and experience: The case of Canadian targeting

EPRI Working Paper, No. 2015-1

Provided in Cooperation with: Economic Policy Research Institute (EPRI), Department of Economics, University of Western

Suggested Citation: Laidler, David (2015) : The interactive evolution of economic ideas and experience: The case of Canadian , EPRI Working Paper, No. 2015-1, The University of Western Ontario, Economic Policy Research Institute (EPRI), London (Ontario)

This Version is available at: http://hdl.handle.net/10419/123489

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The Interactive Evolution of Economic Ideas and Experience - The Case of Canadian Inflation Targeting

by

David Laidler

Working Paper # 2015-1 July 2015

Economic Policy Research Institute EPRI Working Paper Series

Department of Economics Department of Political Science Social Science Centre The University of Western Ontario London, Ontario, N6A 5C2 Canada

This working paper is available as a downloadable pdf file on our website http://economics.uwo.ca/epri/ The interactive evolution of economic ideas and experience- The case of Canadian inflation targeting*

by

David Laidler

Abstract: In Canada, targeting the inflation rate was intended as a temporary measure on a journey to price-level stability, but became a well-established regime in its own right. This paper analyses the role of the interaction of economic ideas with the experience generated by their application to policy in bringing about this outcome. In the following account, changing beliefs about the stability or otherwise of ongoing inflation, the capacity of a flexible exchange rate to create a vicious circle of depreciation and rising domestic prices, and about the roles played by the natural rate and growth in influencing economic outcomes are emphasised. Today’s standard DSGE approach to modelling inflation targeting arrived on the scene only after the Canadian regime was well established.

JEL Classifications: B2, E5.

Key Words: money, monetary policy, inflation, inflation-targeting, interest rates, unemployment, exchange rate.

*A paper presented at the Guggenheim Conference on “Economic Research and Policy Making at the Federal Reserve in historical and international perspective” held at the Graduate Institute in Geneva on June 27th-28th , where the author received the 2015 Thomas Guggenheim Prize for the History of Economic Thought. I am grateful to Arie Arnon and Warren Young for advice about a suitable topic for this occasion. Helpful criticism from Mike Belongia, , Chuck Freedman, Peter Howitt, Clark Leith, David Longworth, John Murray, Michael Parkin, Finn Poschmann, and Bill Robson on earlier drafts is acknowledged with real gratitude, as are comments from participants in the conference, but anything that the reader finds erroneous, misleading or misjudged in the text that follows is nevertheless my own responsibility.

1

Inflation Targeting Inflation targeting is proving to be durable and popular. It emerged in the early 1990s from a series of specific decisions taken in individual countries to deal with what seemed to be particular local problems, and without any immediately obvious precursors. 1 In one variant or another it has now spread, according to a recent count (Sarwat Jahan 2012), to 28 countries, a total that excludes the United States, where targeting remains informal. The role of economic ideas and events in driving this regime’s development and durability is surely worth some attention. Nowadays, the phrase “inflation targeting”, rather than merely specifying a policy goal, usually signifies a comprehensive policy program, a seamless blend of monetary-policy practice and macroeconomic theory. Its generic characteristics (to be referred to as “the standard model” in what follows) consist of : (i) a well- defined policy target, specifically a quantitative goal (typically, as in the case of Canada, with a band around it) for the rate of change of some price index; (ii) a policy instrument under the control of the , typically a very short-term nominal ; (iii) an explicit dynamic stochastic equilibrium model of the mechanisms linking the behaviour of the target to that of the instrument in question, usually consisting of (a), an expectations augmented , where the deviation of inflation from its expected rate varies with a so-called “output gap”, (b) a function specifying the relationship between and the policy instrument, and (c), a model determining the time path of economy’s productive capacity, which in conjunction with (b) determines the output gap; and (iv) a policy reaction function, often a so-called “Taylor rule” (see e.g. John Taylor 1993), specifying how the central bank does, or should, adjust its policy instrument in the light of information about the current and perhaps forecast behaviour of inflation and the output gap in order to keep the target variable on track. The links between economic ideas and the conduct of inflation-targeting policy are thus extremely close these days, and anyone teaching serious students about this regime would certainly refer them to such basic theoretical works as, for example, Lars Svensson (1999), or Michael Woodford (2003), before turning to a discussion of the idiosyncrasies of any specific real-world examples, either existing or proposed. But it would be wrong to infer from all this that the macroeconomic theory we now associate with inflation targeting was always in the lead in the regime’s historical development over the last quarter century. Inflation targeting’s origins lay in rather different and less rigorous economic ideas, and in many places

1 The nearest precursor is probably the Bank of Sweden’s effort to stabilise the (rather than inflation rate) by manipulating the rate of interest for a few years following its abandonment of the standard in 1932. See Fisher and Cohrssen (1934) and Lars Jonung (1979) 2 its theory and practice evolved only slowly under the influence of events into today’s configuration. Broad cross-country studies (e.g. Bernanke and Mishkin 1997) of inflation- targeting are both possible and valuable for many purposes, but in this paper I want to focus on a theme whose significance for the place in macroeconomic analysis of the history of economic thought I have explored in the past (see, e.g. Laidler 2003a), namely the recursive interdependence of economic ideas and experience. Here a local narrative is appropriate, so I shall discuss the evolution of a particular inflation targeting regime, namely Canada’s. Because of its emphasis on ideas, what follows is organised as much along thematic as chronological lines, dealing in turn with the evolution in the light of experience of Canadian policy-makers’ beliefs about: price stability as a policy goal and the stability of positive inflation; the exchange rate as a source of price level instability; the natural unemployment rate; the place of the exchange rate in monetary policy’s transmission mechanism; and the role of money growth as a cause and/or indicator of future inflation. Then a few very tentative comments about the current configuration of Canadian monetary policy will be offered, but debates about how the regime might be modified in 2016, when it is next due for renewal or revision, will not be entered.

Price Stability or Low Inflation Canada was the second country (after New Zealand) to adopt explicitly quantitative inflation targets. It did so in February 1991 with a joint announcement from the and the Federal Government in its budget for that year.2 However, this announcement was regarded, by the Bank as much as by local academic and other commentators, not as heralding a new monetary policy regime but as, at most, significantly clarifying the nature and intended future course of one that had first been announced three years earlier, and already had attached to it a widely-used (though never in any communications emanating from the Bank of Canada) label, “zero inflation” (See Richard Lipsey (ed.) 1990). This regime had been launched in a public lecture – specifically a contribution to the University of Alberta’s Eric John Hanson Memorial Lecture Series, entitled “The Work of Canadian Monetary Policy” - delivered on January 18th 1988 by the Bank of Canada’s then newly appointed (1987) Governor, John W. Crow (Crow 1988a).3

2 Two co-authored books, David Laidler and William Robson (1993) and (2004) deal respectively with the macroeconomic history of the run-up to and initial implementation of this regime, and the following decade’s experience under it. They also discuss the evolution of the Bank of Canada’s policy thinking and practices over these years.

3 Crow (2002) has written his own account of central banking in Canada, and discusses the evolution of inflation targeting between 1988 and 1993 in Ch. 8 of this book, pp. 183-200 3

There can be no doubt about this lecture’s intended significance. Its text is said to have gone through more than thirty drafts before delivery (See Laidler and Robson 1993, p. 89, fn.), and in his foreword to it, Professor Brian Scarfe of the University of Alberta’s economics department declared that “we believe that the governor’s “Edmonton Manifesto” is of equal significance to the “Saskatoon Manifesto” of his predecessor, Mr. , which launched the strategy of monetary gradualism in the Fall of 1975” (Scarfe 1988, p.1, see also Bouey 1975). The lecture’s fundamental message was also quite clear. Its second, (and first substantive) section bears the title “What To Do With Monetary Policy” [sic], and answers the query implicit here in its second paragraph, which reads in full: Theory and experience – much of this experience not overly cheerful but certainly instructive - both point to a very clear answer. Monetary policy should be conducted so as to achieve a pace of monetary expansion that promotes stability in the value of money. This means pursuing a policy aimed at achieving and maintaining stable prices (Crow 1988a, p. 4) This declaration cannot be read as announcing that inflation targeting as we nowadays know it was about to begin. Its reference to “monetary expansion” now looks archaic, a point to which we shall return later, but, more important, it also fails to quantify the notion of stable prices or to set a timetable for their attainment. The difference here from more recent practice is stark. The last (November 8th, 2011) joint declaration about the future of monetary policy from the Canadian authorities runs as follows: The target will continue to be defined in terms of the 12-month rate of change in the total CPI. The inflation target will continue to be the 2 per cent mid-point of the 1 to 3 per cent inflation-control-range. The agreement will run for another five-year period, ending 31 December 2016. ( and Bank of Canada 2011) The above-mentioned February1991 joint announcement of “targets for reducing inflation” (Bank of Canada 1991), in whose genesis the Department of Finance rather than the Bank seems to have taken the lead (See Crow (2002), Don Drummond 2010), brought the “zero inflation” program closer to the 2011 model by setting specific goals, within a target range, for the inflation rate, and proposing a time path for their attainment as well.4 Inflation, then running at more than 5 per

4 We now know, thanks to Crow (2002) and Drummond (2010), that the quantification of monetary policy’s goals was influenced by the then recent New Zealand example. We also know that the aims of the Bank of Canada and the Department of Finance were not the same. The Bank was intent on continuing its post-1988 drive towards price stability and was unenthusiastic about giving quantitative content to its goals. The Department of Finance, however, had more immediate short-run concerns. First, as we shall discuss below, late 1990 saw intense pressure on the exchange rate driven by uncertainty in financial markets about the durability of Canada’s commitment to inflation reduction, and the Department believed that the announcement of explicit quantitative goals would help stabilize the 4 cent, was to be gradually reduced to 3 per cent by the end of 1992, to 2 ½ per cent by the middle of 1994, and 2 per cent by the end of 1995, all of these plus or minus 1 percentage point. But something else was very much present in both the Hanson Lecture and the 1991 announcement which had gone completely missing by 2011, namely an explicit invocation of the concept of price stability. Having specified an inflation reduction timetable, the 1991 announcement went on as follows, picking up the Hanson Lecture’s theme: “Thereafter the objective would be further reductions in inflation until price stability is achieved”; and it then defined this state of affairs as a “rate of increase in the CPI that is clearly below 2 per cent”, with the important qualification that further precision was not then being offered “in the event that further evidence becomes available over the next few years” (Bank of Canada 1991). In short, in the program launched in January 1988 and clarified in March 1991, what we are now used to calling inflation targets were an intermediate means to attaining a more fundamental end, not a goal in and of themselves for Canada’s future monetary policy regime. When loosely specifying “price stability” as involving an inflation rate of less than 2 per cent, the March 1991 announcement cited a recent study by Pierre Fortin (1990) of the accuracy of changes in the CPI as a measure of inflation; and other contributors to the symposium in which Fortin’s work appeared (Lipsey, ed. 1990) had also suggested that in practice, allowing for biases in that index, which seemed to overestimate inflation by about 0.5 percent, “zero inflation” would mean a rate of increase for it in the range of 0 – 2 percent. In 1991 this specification was thus uncontroversial as a definition. As a goal, however, it was already a matter of considerable debate. From the outset in 1988, the Bank’s aims had been much criticised by commentators who were nervous about the economy’s ability to withstand monetary contraction of the scale needed to get inflation down, even gradually, from the 4 – 5 percent range then prevailing to zero, and about the Bank’s ability to stabilize it thereafter, not to mention about the political tensions that any regional disparities in such policies’ impacts might create (see, e.g. Robert F. Lucas (1989), Thomas Courchene 1990a, 1990b). The fiscal situation also presented a problem: the Federal budget had been in chronic deficit since 1974, and the introduction of a contractionary monetary policy in the face of what looked likely to be continuing fiscal ease had obvious and unpalatable implications for the likely behaviour of interest rates. Such arguments found a wide and sympathetic audience, and the situation. Second, the GST, a Federal value added tax, to be introduced in early 1991, was universally expected to give a once and for all boost to consumer prices, and with trade unions promising to push for offsetting wage increases, the Department, though willing to have the initial boost accommodated by monetary policy, saw some advantage in announcing clearly that an ensuing wage-price spiral would not be tolerated. 5 temperature of an already extremely heated public discussion of the Bank of Canada’s “zero inflation” policy continued to rise uninterruptedly and rapidly after the announcement of formal targets. Governor Crow’s seven year term of office was to expire in early 1994.5 Co- incidentally but crucially, an election in late 1993 would – in a widely expected result - bring to power a Liberal government with no stake in the policy regime he had initiated, but to which a Conservative government had committed itself in its 1991 budget. Obviously both the Governor’s position and the regime were politically vulnerable; and in the face of clear opposition from the new Minister of Finance, Mr. Paul Martin Jr., Crow withdrew his candidacy for reappointment. He was replaced by his deputy , who, unlike Crow, was able to acquiesce in the new Minister of Finance’s insistence that the goal of “further progress” after 1995, beyond 2 percent inflation and towards “price stability”, be suspended (as the price for extending the 1995 2 percent target until 1998), pending more study.6 The further progress in question has remained in suspension ever since, through four renewals of the initially interim 2 percent inflation target, the terms of four Governors of the Bank of Canada, six federal elections, one major change of governing party, not to mention a continuous sequence of debates, conferences, speeches, working papers, technical studies etc.. These facts raise a number of questions: Why was Governor Crow unwilling to accept any weakening of his price stability program in 1993? What had made this always politically vulnerable program completely untenable by then? And what happened thereafter to solidify an expedient short-run compromise, which at the time seemed simply to push a hard decision a couple of years into the future, into an enduring goal for Canadian monetary policy?

5 The Bank of Canada Act gives sole authority over the conduct of monetary policy to the Governor, subject to (a) a requirement that he consult regularly with the Minister of Finance and (b) a ministerial over-ride power, which has to be implemented in writing, in specific terms, and expeditiously published, and which has never been utilised, because it is understood that this would trigger the Governor’s immediate resignation, and hence precipitate a . The Governor, whose appointment is renewable, holds office for seven years subject to “good behaviour”; that is, he can only be dismissed for malfeasance. He is appointed by a committee of the Bank’s Board of Directors (political appointees with no monetary policy function) subject to the approval of the Cabinet, normally in the person of the Minister of Finance. In practice, therefore, a Minister’s influence over a Governor’s policy stance is at its maximum if and when he comes up for re-appointment, because he can then threaten to withhold approval of a recommendation for re-appointment by the Board. Crow (2002, ch2.) deals with the rules under which the Bank operates, and their evolution in some detail .See also Laidler and Robson (1993, Ch 3, and 2004, ch.2)

6 The Board that initially recommended Crow’s re-appointment, and then seems to have insisted on that of Thiessen, was made up of appointees of the just defeated Conservative government. This fact may be significant in explaining how so much of the earlier monetary policy regime came to survive the 1993 change of government. 6

Price Stability as a Place to Stand The 1988 Hanson lecture was an important landmark in the evolution of Canadian monetary policy.7 Though Canada had re-adopted a flexible exchange rate in 1970 to ease the domestic monetary impacts of rising balance of payments surpluses, policy makers had then made the mistake of resisting the ’s subsequent appreciation and therefore ensured that the country would participate fully in the great international inflation of the subsequent years. A policy of gradually restricting narrow money (M1) growth, adopted in 1975 with considerable fanfare – and a public endorsement from (See Thomas Courchene (1976), p. 111) - accomplished little, and by 1980 inflation still hovered around the 10-11 per cent mark. Money growth targeting was already clearly on the verge of being discarded in Canada when the Volcker began in the United States, and the behaviour of the exchange rate, this time a rapid depreciation, again came to dominate policy as it had a decade earlier: interest rates were dramatically increased, with the bank rate rising to slightly above 21 percent, and the exchange rate was steadied; but the targeted narrow collapsed and so did the real economy and the inflation rate. By the time the Bank’s de facto abandonment of monetary gradualism in order to support the exchange rate was explicitly ratified in1982, the real economy was beginning to recover, and inflation would settled down in the 4-5 per cent range for the next few years. Crucially, however, nothing replaced narrow money growth targeting as the centrepiece of monetary policy. To invoke the title of Governor Gerald Bouey’s Per Jacobsson Lecture of that year (Bouey 1982), its abandonment left monetary policy without “A Place to Stand” for the next six years, as the Bank’s researchers undertook a vain search for a reliable replacement. They were not the only ones, and in the mid-1980s, there was a flurry of interest among academics and others in proposals to replace targets for money growth altogether with targets for the growth path of nominal GDP. Alongside an array of alternative monetary aggregates to M1, this was also among the possibilities investigated in Bank research. 8 But Bouey had already clearly hinted where the Bank’s own search might end in the final sentences of his 1982 lecture: Since it has proven so hard to halt the process, we now know for certain that we should not give inflation a place to start. Economic performance over

7 The story of monetary policy in the 1970s and 1980s, so briefly summarised here is told in more detail by Crow (2002, ch 7), and is dealt with extensively by Courchene (1976, 1977, 1978 and 1981) and Peter Howitt (1986). See also, Laidler and Robson (1993, ch. 6.) 8 The important Macdonald Commission Report on The Economic Union and Development Prospects for Canada (see Royal Commission 1985) proposed such a goal as a medium term anchor for monetary policy. For Bank of Canada research on this topic , see David Longworth and (1986), and Pierre Duguay and Longworth (1998).. I am indebted to David Longworth for helpful discussion of this episode. 7

time will be better if monetary policy never loses sight of the goal of maintaining the value of money” (p. 17) Thereafter, the Bank’s quest for a firm basis for a new regime slowly shifted away from seeking a more reliable intermediate target than M1 had proved to be, towards monetary policy’s ultimate target, the behaviour of the price level. In retrospect, there was something of a reversion here to ideas canvassed in the interwar years, when and his Stable Money League promoted price stability as a legislated policy goal for the Fed. (See Fisher and Cohrssen 1934 for a retrospective account), and Henry Simons (1936) argued for making it the basis of a monetary policy based on “rules” rather than “authorities”. Such ideas had been pushed into the background when, under the influence of the and the Keynesian Revolution, interest in monetary policy waned. They had then been kept there, even after this interest revived, by Milton Friedman’s powerful arguments (e.g. Friedman 1960) that lags in the transmission mechanism of monetary impulses made the direct pursuit of goals for the price level futile or even dangerously destabilising, and that a growth-rate rule for the money supply, a key intermediate variable, was a therefore a preferable basis for policy.9 It was from these ideas of Friedman’s that the policy regime abandoned in 1982 had been somewhat loosely derived. If Governor Crow’s 1988 unequivocal declaration in favour of price stability did not quite mark the start of a process of fundamental change in the Bank of Canada’s views on monetary policy, then, it nevertheless highlighted a critical and growing difference between those views and an important element of the period’s mainstream academic , including its Canadian branch. The expectations-augmented Phillips curve, still an important component of today’s “standard model” of inflation targeting, had arrived on this academic scene in the late 1960s in two separate, albeit complementary, packages. In one, dispatched by Friedman (1968), it was accompanied by the argument that all monetary policy could control was the long-run average inflation rate – by way of setting a steady pace of money growth - while unemployment would have to be left to settle at its “natural” level. In the other, launched by (1967, 1972), the relationship was touted as the key component of a new “cost-benefit approach to monetary planning” in which the old static Phillips curve trade-off between inflation and unemployment was reconfigured in dynamic terms, with the latter variable creating the main costs to be incurred while efforts to reduce the inflation rate were in progress.

9 George Tavlas (2015) gives a convincing account of the role played by the analysis of policy leads and lags, and their capacity for generating instability, not to mention a large body of empirical evidence testifying to their importance amassed by Friedman and his co-workers, in differentiating Friedman’s analysis of monetary policy rules from that of his Chicago predecessor Henry Simons. 8

In the 1970s, when the policy problem throughout the Western world seemed to be how to reduce inflation, Phelps’ formulation attracted much attention. In particular, when combined with the then fashionable habit of measuring the gains to be had from reducing inflation in terms the areas of welfare-triangles under the function, which turned out in practice to be rather small – shoe-leather costs as James Tobin (1972) contemptuously dismissed them – this approach raised the possibility of simply learning to live with an already deeply embedded inflation rate as a serious policy option. The idea that Canadian monetary policy should settle for stabilising the inflation rate at its then current value of a little over 4 percent was the clear target of Crow’s insistence in 1988 that “the notion of a high, yet stable, rate of inflation is simply unrealistic . . . If the authorities were unwilling to act to get the rate of inflation down from, for example 4 per cent, why should anyone believe they would be any more willing to get it back to 4 per cent if for one reason or another upward pressure on prices led the inflation rate to rise to 5 per cent? And so on”, Hence “the only realistic policy we can pursue that will generate and warrant confidence in the future value of money is to work towards price stability” (1988a p. 5). The idea that “creeping inflation”, if tolerated, would always threaten to evolve into “trotting inflation”, and perhaps ultimately to break into a “gallop” – here I borrow vocabulary used by one of its most distinguished earlier exponents, Gottfried von Haberler (1961) – and hence could not be a credible policy goal, was hardly new when Crow invoked it in 1988, though by then it had been academically unfashionable for twenty years or so. Indeed, Lipsey had dismissed it as a “very commonly believed piece of folklore” albeit without citing a source, as early as 1963, in the very first edition of his famous introductory textbook (See Lipsey 1963, p. 430). But this is hardly the first time that an old idea has resurfaced and become influential in the history of macroeconomics, and this one did both, at a crucial moment in the history of Canadian monetary policy. As we have just seen, it was the main basis for Crow’s commitment to price stability as a place for monetary policy to stand in 1988 and it also underpinned his unwillingness to cede this long-run commitment to what he saw as short-run political expediency in 1993. But this same idea made little impact among Canadian macroeconomists when Crow resurrected it. Scepticism about it figured prominently not only among his critics, but also among those more inclined to support him. Among the latter, though Richard Lipsey (1990) stressed the considerable capacity of even an apparently “low” inflation rate of 4 per cent to erode nominal wealth and fixed money incomes, he also discussed the Bank’s proposed policies in terms of a

9 dynamic trade-off between its immediate costs and longer term benefits, as did Douglas Purvis (1990) and Peter Howitt (1990). Purvis (1990) accepted Crow’s argument that inflation in the 4-5 per cent range was too high to be credible, and agreed that the Bank should gradually reduce it from this level, but he saw no reason for this reduction to be carried all the way to zero. Like the Bank, he believed that the credibility of a commitment to stable inflation would increase as it fell, but unlike the Bank, he suggested that the question of whether inflation reduction could safely stop short of price stability could be left open for a while. Howitt analysed the Canadian situation in explicitly Phelpsian terms and assessed the costs of inflation, not in terms of triangles under a demand for money function, but of the more pervasive distortions that menu-cost related fluctuations in relative prices, whose effects were amplified by a largely unindexed tax system, could generate as inflation progressed. And he supplemented his treatment along these lines - ones that Courchene (1981), citing, as did Howitt, Axel Leijonhufvud (1977), had introduced into the Canadian debate a decade earlier - with a relatively new twist. Referring to recent developments in (see Howitt p.99, fn), he suggested that, because investment was the means whereby new productivity-enhancing technology was brought into use, and because higher inflation undermined the efficiency of this activity, reducing it was likely to raise not just the level of output (a claim that had been made in the Hanson lecture) but its rate of growth as well. Given the capacity of even small increases in the rate of growth of an income stream to increase its present value, this argument tipped the verdict of Howitt’s analysis, which attracted much attention in the next few years, very much in favour of moving from the status quo 5 percent inflation of 1990 towards a significantly lower rate; but still, and in agreement with Purvis, he explicitly pointed out that, because the marginal benefits of reducing inflation would decrease as it fell, while the marginal costs were likely to remain constant, it stopped short of establishing the total elimination of inflation as the only reasonable long run goal for monetary policy. 10 The important point here is that such Phelpsian analysis did not imply that deep economic principles were being violated when, in 1993, a new Minister of

10 Unusually for a Canadian policy study, Howitt’s work attracted attention within the Federal Reserve System (see. Daniel Thornton 1996). It cited a well-known Bank of Canada study by Peter Jarrett and Jack Selody (1982) of the inter-relationships between inflation and productivity growth in the 1960s and 1970s that seemed to suggest that the gains to be realised here were significant. The Bank’s own continuing interest in this theme is epitomised by Selody (1990). In hindsight it seems likely that these results, which did not prove robust, were heavily affected by the fact that a significant secular slowdown in productivity growth in the mid-1970s coincided with the arrival of double digit inflation. A later study of international evidence on this issue by Robert J. Barro (1996) carried out for the Bank of found that such relationships became harder to discern as inflation rates sank into the single digit range. For a well-balanced retrospective account of the rise and fall of Canadian ’ confidence in the productivity and productivity growth gains to be realised from low inflation, written against the background of Canada’s policy regime, see Christopher Ragan (1998). See also, Laidler and Robson (2004, pp. 150-155) 10

Finance refused to support more ambitious post-1995 goals for price stability. While Crow’s view of matters in 1993 focussed on the loss of what he regarded as the essential element of his monetary policy program, the majority of his supporters focussed instead on the fact that a 2 percent inflation target to be reached over the next couple of years was still in place. They were relieved that what they had always regarded as important about his program, its inflation reduction element, had been preserved in the face of considerable criticism and political opposition.

The Exchange Rate and the Contraction of 1990-91 At the turn of 1993-94, when all this happened, the Canadian economy was well into the second year of what would prove to be an agonisingly slow recovery from a that had struck suddenly in late 1990 and (unlike the mild US contraction of that year) had been almost as deep as that of 1981 – with a peak unemployment rate of a little over 11 per cent. This event, and in particular its severity, was widely and immediately attributed to monetary policy, so explicit inflation-reduction-price-stability targets, set in its midst with the endorsement of the government of the day, were bound to suffer politically by association when a new government came to power. In fact, however, the monetary contraction responsible for the recession’s severity began well before explicit targets were put in place, and stemmed not so much from an obsessive over-eagerness on the part of the Bank of Canada to get moving along the road to price stability, as many of its critics suggested, as from a desire to protect its own and its program’s credibility against what it perceived to be a threat from foreign exchange markets. Here the main influences on the Bank’s actions were not so much ideas about the virtues of price stability per se, but about the role of the exchange rate in the monetary policy process. After the Hanson lecture, and further remarks delivered by Crow at the 1988 meetings of the Canadian Economics Association (Crow 1988b) that confirmed that this lecture was indeed to be taken seriously, monetary tightening had tentatively begun in the second half of the year, and by 1989 had become firm enough to attract both public attention and criticism, as both interest rates and the exchange rate moved up. By late 1989, however, demand pressures in the economy showed signs of slackening, at least to careful observers such as Governor Crow and his colleagues: a little monetary easing seemed to be called for, and was duly applied.11 Unfortunately, this easing, extremely moderate though it was, was widely read in financial markets not as an indication that policy was on track, but that the

11 This episode is described in more detail by Laidler and Robson (1993, Ch. 7) 11

Governor’s resolution to see his price stability program through was weakening. The exchange rate fell by two cents in a week and a further two within the month. The Bank responded not just by reversing its monetary easing but by tightening policy significantly relative to where it had been over the previous year. It held this new stance well into 1990, with bank rate peaking at just over 14 per cent in May, even as the exchange rate stabilised and then moved up, and the narrow money supply collapsed just as it had in 1981. The resulting slump, already visible when inflation control targets were announced in February 1991, would reach its trough in the second quarter of that year, and by the beginning of 1992, inflation that had been running at 5- 6 percent a year earlier, came in at just under 2 percent, the figure targeted for the end of 1995.12 It is hard to deny that Bank of Canada policies were the proximate cause of most of this, or that in redirecting policy towards the short-term behaviour of the exchange rate in 1990, the Bank undermined its own longer-term strategy. But there was nothing improvised about the measures it took. They were clearly foreshadowed in the Hanson Lecture, which had paid careful attention to the place of the exchange rate in the determination of the price level and more generally in the mechanisms through which monetary policy affected the economy. Reflecting on the situation that had prevailed in the mid-1980s, Crow had remarked that the main risk on the inflation front was from price shocks caused by exchange rate movements. These shocks might have led to a resurgence of inflationary expectations and greater upward pressure on prices . . .the avoidance of sharp depreciations of the exchange rate therefore received a good deal of weight in monetary policy decisions (Crow 1988a, p. 20) And then, turning to the future, he had assured his audience that we have to take account of movements in our exchange rate on the pace of spending and of inflation in our economy. This is so even if our goal is not the external value but rather the domestic value of the Canadian dollar, and even if the surest way to sustain the exchange value of our currency is to maintain its purchasing power at home. . . . let me underline that monetary policy will always to be ready to act, and act promptly, to backstop confidence in the Canadian dollar. Such confidence, once dissipated, is not easily regained. (Crow 1988a, pp.23-24)

12 CPI Inflation data for 1991-2 are distorted by the introduction of the GST at the beginning of 1991. The measured year on year rate in the month the tax was introduced was a little over 6 per cent, with a percentage point of this probably being attributable to the tax. When its effects dropped out of the index 12 months later, the rate came in at just under 2 per cent.

12

At the beginning of 1990, judging that confidence in the currency was indeed weakening fast, and threatening to set in motion a vicious circle of depreciation and domestic inflation, this is exactly what the Bank of Canada did We do not need to reach a verdict here on whether the Bank of Canada had any option but to react as it did in 1990 (though some supporters of its overall program thought at the time that a more measured reaction would have been both feasible and desirable: see, e.g. Laidler and Robson 1993, p 104). There were several good reasons, completely unrelated to monetary policy, for confidence in the currency be to particularly weak at that time.13 And in 1990, it was not even clear that the Bank of Canada’s price stability program had the support of the government of the day. As one of Crow’s more perceptive critics (David Johnson 1990) had noted, the inflation forecasts embedded in the 1990 budget lay significantly above any time path that was consistent with the Bank’s declared intentions. What is important here is that there was nothing novel about the fears that drove the reaction in question. Similar concerns had underlain the Bank’s setting aside its gradualist policies in order to support the exchange rate in 1981 (see, Bouey 1982 pp. 13-14), and the idea that speculation-driven exchange rate depreciation could be an essentially independent driver of domestic inflation had an even longer pedigree. Sixty years or so earlier, a version of just such a mechanism had been widely touted as an explanation of the Weimar hyper- inflation (see Laidler and George Stadler 1998 pp. 142-144); and this analysis was also closely related to notions about the dangers of destabilizing speculation that had figured prominently in the League of Nations sponsored study of inter-war exchange rate instability by Ragnar Nurkse (1944). This study had, of course, drawn criticism from Milton Friedman (1953), who had argued that the observed exchange rate instability of the inter-war years was the side effect of unstable domestic monetary policies, inconsistent across countries, rather than the product of an inherent flaw in the workings of the foreign exchange market itself. Thus, and as is usually the case, the well-established ideas that motivated Canadian monetary policy in 1989-91 were not the only ones available. 14

13 Among these reasons were the following: the 1987 Meech Lake Accord –a federal-provincial agreement on fundamental constitutional reform - was clearly in trouble by 1989, and in fact failed to be ratified in 1990, setting in train a more or less continuous series of internal political shocks that would culminate in the 1995 Quebec referendum on separation, which came within a hairsbreadth of breaking up the country; the Federal budget remained in chronic deficit, and the higher interest rates associated with the Bank’s policies were putting it under increasing strain, even before the defence of the exchange rate made these intense; the next election looked increasingly likely to bring to power a new Liberal government pledged to abolish the newly introduced GST and to renegotiate the North American Free Trade agreement, but whose leaders had said nothing about how they intended to replace these newly erected pillars of Canadian fiscal and trade policy. 14 It should be recalled though, that in the wake of the two decades of gyrating exchange rates that followed the breakdown of the Bretton Woods system, confidence in the stability of the foreign exchange market was at a low 13

The Natural Unemployment Rate Hypothesis The foregoing story about the role of ideas in bringing about Canada’s 1990-91 recession is very unlike that told by George Akerlof and Robert Shiller (2009). These authors also lay the proximate blame for events squarely on restrictive monetary policy, but they differ in their assessment of the economic theory that drove its conduct. Here, following Fortin (1996), they assign pride of place to the natural unemployment rate hypothesis. In their words, “Crow was a firm believer in natural rate theory and the ability of the central bank to bring inflation down. And he was successful in this task . . . but at a terrible cost” (p.114). They then go on to blame a Canadian slump that they suggest lasted till the end of the decade – a stretched interpretation of the evidence, particularly that generated after 1995 - on the continued pursuit of low inflation after 1994 by Crow’s successor Gordon Thiessen, which they allege was also underpinned by an “ideological” belief in the natural rate hypothesis.15 As already noted above, the idea that there is no long-run inflation unemployment trade off was a highly visible feature of Friedman’s (1968) exposition of the expectations augmented Phillips curve. From the outset, this idea was controversial and open to plausible criticism from two standpoints in particular. First, an idea advanced by James Tobin (1972), money wage setting processes might be subject to extra rigidities in the region of zero change that would make it particularly difficult for wage relativities to adjust to variations in the structure of the demand for labour at low inflation rates. If this was the case, then there would still be a long-run trade-off between inflation and unemployment at those lower inflation rates. Second, the labour market might be subject to what Phelps (1972) termed “hysteresis”, whereby the time path followed by unemployment as inflation was being reduced might bring about changes in the labour market’s structure that would then influence the sustainable long run rate of unemployment once this process was complete. Such effects as these are indeed logical possibilities, as Laidler and Robson (2004, pp. 149-50) noted, but what really mattered in the 1990s, as now, is their quantitative significance. The first of them did not attract a great deal of attention in the high-inflation 1970s for obvious reasons, but the second was readily and quickly incorporated into the Phelpsian approach to monetary planning discussed above as an extra and potentially complicating factor. By the late 1980s, however, both were potentially relevant to the design of a monetary policy intended to

ebb at the beginning of the 1990s. Whether this experience, which to the best of my recollection, none of the supporters of flexible rates had anticipated or found themselves able to explain at the time, can actually be explained in terms of inconsistencies among the then current and prospective policies of the countries involved is a question that I would prefer not to tackle here. 15 Akerlof and Shiller do not cite Crow (2002) in the course of their attack on his policies. 14 eliminate inflation altogether, but, to judge from the Hanson Lecture, they do not seem to have attracted the Bank of Canada’s attention, though the possibility of hysteresis effects did feature in some of the supportive academic discussions of the Bank’s program already cited (See e.g. Howitt, 1990, Laidler, 1990). On the other hand, however, The Bank of Canada made no explicit declaration of faith in the natural rate hypothesis either, to match that of, say, Purvis (1990 pp. 37-38), who did however qualify it with an explicit warning that it might take five years or more for “temporary effects” to dissipate after a monetary contraction. In the Hanson lecture and elsewhere, Crow certainly argued that there were no gains to be had for the economy in taking a permanently relaxed attitude to inflation, and maybe some losses to be incurred too. It is doubtful, however, that the main inspiration here was Friedman (1968); if it had been, Crow would hardly have also argued that any inflation rate high enough to be perceived by the public at large would lack credibility and hence be unstable, a conclusion quite contrary to Friedman’s broader message. It is far more likely that he was building on intellectual examples of scepticism about any alleged benefits of inflation set, among others, by an earlier Governor of the Bank, James Coyne, whose career had foundered in 1960, in part on his commitment to this idea, and by the members of the Porter Commission (see Royal Commission on Banking and Finance, 1964) which had reported comprehensively on the workings of the Canadian monetary system in the wake of the crisis that had followed Coyne’s resignation, and whose discussions of this issue Crow’s deputy and eventual successor Gordon Thiessen would later term “prescient” (see, Thiessen 1999, p.47).16 Had policy followed its initially intended gradual path after 1988, none of this might have mattered very much, but its sudden tightening in 1990 and the recession that followed changed the landscape entirely. Not only did the prospect of hysteresis effects like those seemingly been observed in the 1980s become a serious and alarming possibility for a while, as Fortin (1991) was quick to point out, but with inflation falling to a range not observed since the 1960s, so did adverse wage-stickiness effects on the long run level of unemployment. A working paper on the latter topic, again by Fortin (1995), was in circulation some time in that year, though his results were not actually published under his own authorship until the following November, forming, as they did one important component of the altogether broader attack on Bank of Canada policy that he launched in his May 1966 Presidential address to the Canadian Economics Association (See Fortin 1996).

16 Crow (2002 , chs. 1 and 2) discusses these episodes and their implications. James Powell (2009) gives a fuller account of the so called “Coyne Affair”. On the Porter Commission more generally, also see Thiessen (1999) 15

By then, these results had already attracted international attention, having been a prime exhibit in Akerlof, Dickens and Perry’s (1996) still well known, and successful, attempt to revive interest in Tobin’s (1972) critique of the natural unemployment rate hypothesis, and having also been cited by (1996) in an essay entitled “Stable Prices and Fast Growth, Just Say No” written for The ; and Fortin (1995 and 1996) are still the only sources cited in by Akerlof and Shiller’s (2009) in their account of the role played by the natural unemployment rate idea in shaping Canadian economic policy and history in the 1990s. Hence, the nature and robustness of Fortin’s results are of some interest. To summarise: Fortin found that a much larger fraction – Krugman termed it a “staggering 47 percent” - of union wage bargains that did not include cost of living adjustment clauses had settled on no change in money wages during the low inflation years of 1992-94 than during the higher inflation years of 1986-88 - around 12 percent. Applying Tobin’s (1972) analysis, and referring back to his own earlier working paper and to Akerlof, Dickens and Perry’s (1996) by then published discussion of these matters, Fortin argued that these results implied the existence of a significant negative relationship between inflation and the long-run unemployment rate in Canada at inflation rates below 3 percent. Hence, he concluded, not only had monetary policy been responsible for the 1990-91 downturn, but a continuing policy aimed at a 2 percent inflation rate was condemning the country to continuing high unemployment and poor economic performance into the foreseeable future. Readers of Akerlof and Shiller (2009) are left with the impression that this is where matters still rest, and that Fortin’s gloomy forecasts were vindicated by subsequent experience, but in fact Fortin’s results were quickly challenged as being heavily dependent on particular and controversial decisions about just how to select and organise the relevant data (See, for example, Seamus Hogan (1997), Allan Crawford and Alan Harrison (1998), and Charles Freedman and 1998). When alternative, and arguably more plausible, formulations were deployed, Fortin’s “staggering” 47 per cent figure for zero wage changes in contracts negotiated in 1992-94 fell well below 20 per cent.17 These data adjustments were also more than adequate to shift the inflation rate at which Tobin style effects on the long inflation-unemployment rate-off became important to less than 2 percent, which perhaps helps to explain why Canadian unemployment fell from above 9 percent in 1996 to the 7 percent range by the end of the decade, a

17 Though Tobin’s initial analysis was cast in terms of the behaviour of private sector labour markets, Fortin’s data set included many public sector agreements, including some from the province of Ontario in the 1992-94 period in which wage freezes had not emerged from any bargaining process, but had been imposed by government decree. Only the first year outcomes of multi-year contracts were counted, even where the first year in question involved grandfathering what had already happened because of bargaining delays and produced an automatic “no-change” observation, and even where wage increases or cuts for later years formed part of the overall bargain. 16 range not experienced since the early 1970s, and even lower thereafter (6 percent in 2007, just before the Great Recession), despite an inflation rate of around 2 percent being sustained. Even so, after these adjustments, the data still revealed an unusual bunching of wage settlements around zero, and hence gave some qualitative support to concerns about how the labour market would perform at an inflation rate below 2 percent. Crucially, then, they also left open some residual questions about the wisdom of shifting monetary policy towards a more ambitious inflation goal than the interim 2 percent target, particularly in the light of the fact that the productivity and productivity growth gains that had been widely expected from reducing inflation from the 5 to the 2 percent range, and which had underpinned Howitt’s (1990) endorsement of this goal, simply had not materialised, so that no gains on this front could confidently be expected from any further reduction.

The Exchange Rate and Monetary Conditions The three most significant post-war episodes of monetary instability in Canada – the onset of inflation after 1970, and the two slumps of 1981-2 and 1990-91 were all, or so it has been argued here, heavily influenced by the Bank of Canada’s becoming distracted from its domestic goals by the behaviour of the exchange rate. Nor, despite this experience, was the Bank quite immune to such temptations later in the 1990s.18 Fears of exchange rate depreciation that might generate extrapolative expectations and lead on to a vicious circle of inflation and further depreciation were still aired in speeches by the Governor, notably for example in Thiessen (1995), while the Tequila crisis of early 1995 and the Russian crisis of 1998 both brought the Canadian dollar under external pressure, and drew responses from the Bank in the form of domestic monetary tightening. Compared to earlier episodes, however, these responses, particularly in the second instance, were relatively short-lived. Perhaps this was because some of the non-monetary factors that had contributed to the fragility of confidence in the Canadian economy in 1990-91 were already beginning to become less significant by the middle of the decade, though this did not prevent the Canadian dollar attracting in some quarters the nickname “Hudson Bay Peso” for a while.19 But perhaps also, the Bank had learned some lessons from those earlier episodes about

18 Laidler and Robson, (2004, pp.155-173) give a more detailed account than space permits here of the exchange rate’s behaviour as well as its influence on policy debates and policy itself during this period. 19 By 1995 inflation targets had been in place for four years and, with their credibility growing, looked to be headed towards eventual renewal, while the Liberal government had quietly dropped its plans for abolishing the GST and renegotiating the NAFTA. Crucially also, after a shaky start in 1994, serious and visible political efforts to come to grips with the fiscal situation culminated in the landmark “austerity” - as it would nowadays be labelled - budget of February 1995. The question of Quebec separation was settled, for a while, in October 1995 by a referendum in that province, though by an extremely slim margin.. 17 the dangers of letting the short-run behaviour of the exchange rate distract attention from its longer-term domestic goals. The exchange rate had been discussed not just as a potential source of exogenous monetary disturbance in the Hanson lecture, however, but also as a key variable in the monetary policy transmission mechanism. The lecture’s account of this mechanism amounted to an embryonic version of an open economy variation on that embodied in today’s standard model, and in this context, the exchange rate continued to feature prominently not only in the Bank of Canada’s conduct of policy, but also in its efforts to communicate its policy intentions to the public at large, well into the later 1990s. Indeed, beginning around 1990, (See Charles Freedman 1994) the Bank pioneered first the construction and then the publication of a “Monetary Conditions Index” (MCI) in which estimates of the relative importance of interest rate and exchange rate movements for aggregate demand were quantified and blended into a single number.20 For a while this index became an informal but apparently important intermediate target for monetary policy. It played the same role as that of some representative market interest rate, or rates, in the closed economy systems of the time that were by then coming more and more to resemble today’s standard models, and which Bank researchers, building on their own contributions to these developments, were adapting to local requirements (See, e.g. Pierre Duguay 1994, and Don Coletti et al. 1996, whose work was already in progress in 1994).21 The target value of the MCI was thus never intended to be a constant, as Bank of Canada communications repeated ad nauseam in the mid-1990s. In the Bank’s approach, policy actions were geared to adjusting the MCI to the state of aggregate demand and inflation expectations, so as to keep actual inflation on track; and clear communications to the public at large about its intentions here were intended to facilitate the economy’s adjustment to those actions, in an early version of the use of “forward guidance” in the policy process, though this specific terminology was, of course, not then current. The underlying theory here was surely faultless, but the MCI foundered in practice on a complicating factor whose significance even sophisticated private sector agents turned out to find hard to grasp (despite the Bank’s repeated efforts to explain its significance): namely, that, in the very nature of things, the exchange rate was subject to more than one influence, and how an inflation targeting central bank should adapt interest rates to movements in this variable in order to keep the MCI and therefore inflation on track, depended on which of these was at work. A

20 What they term “The rise and fall of the monetary conditions index” is discussed in more detail by Laidler and Robson (2004, pp 119-123) 21 And see also Duguay and Longworth (1998) for a retrospective account of Bank of Canada contributions to these developments, which dated back to the mid-1980s 18 tendency of the exchange rate to respond to financial market troubles elsewhere in the world – as when, for example, the Tequila crisis caused an international flight to the quality of the US dollar, weakening the Canadian exchange rate as a side effect – would, other things equal require an offsetting change in Canadian interest rates to maintain monetary conditions constant. On the other hand, if the exchange rate movement was the result of changing demand conditions for Canadian exports, the appropriate response, again other things equal, would be to allow the resulting change in monetary conditions to offset this real shock, and hence not to respond to the exchange rate change with an interest rate movement. Apparently unable to grasp this all important distinction (and, to be fair, even when it is grasped in principle, it can be hard to apply in practice) agents began to anticipate mechanically in domestic financial markets what they believed the Bank’s response to any change in the exchange rate was going to be if the MCI was to remain stable. They also began to complain about having been misled on occasions when the Bank disappointed them. The MCI, that is to say, rather than aiding the transparency with which monetary policy was conducted, actually became a source of opacity that hampered its effectiveness. After a particularly difficult episode involving dissonance among the Bank’s initial conditional intentions towards, market expectations about, and the actual evolution of, monetary conditions after the spring of 1998, created by the unexpected onset of the Russian crisis in the summer, the Bank began to downplay the MCI, and in due course ceased its publication. As deputy governor Charles Freedman (2001) remarked: While in my view monetary conditions remain a useful concept, the MCI has not proved to be especially helpful as a communications device vis-à-vis markets at times of uncertainty regarding the source of the shock causing the movement in the exchange rate. Thus, while the Bank continues to use the term “monetary conditions” in its description of policy, it places less emphasis on the MCI as a measure of these conditions. (p. 4) Also in 1998, in decisions associated with the above-mentioned Russian crisis, the Bank of Canada permanently suspended what, up till then, had been a routine policy of regular “symmetrical intervention” in the foreign exchange market, while that summer also saw what has proved to be its last attempt to stabilise this market by way of a special intervention (though the Bank still reserves it right to carry out such intervention in unspecified circumstances).22 All

22 “Symmetric intervention” involved the Bank in automatically buying its currency on a falling market and selling it on a rising market, not in order to influence the ultimate outcome, but to smooth the exchange rate’s progress towards it. During the Russian crisis of the summer of 1998, foreign exchange rates were so volatile that, although the general direction of the exchange rate was downwards, it occasionally rallied for a few days. At such times the Bank found itself selling the currency at the same prices at which it had been buying only a few days earlier, thus creating confusion in the market about what its intentions actually were. 19 in all, then, it is fair to say by the end of the 1990s, the exchange rate had finally been deprived of the privileged position that it had earlier occupied in monetary policy making in Canada. By then, the Bank seemed to have begun to follow the advice of a future Governor, then in the private sector, to “develop an indifference towards the currency” (Poloz, 1997, p. 238). Thereafter, for example, the Bank stood by when the exchange rate fell as low as 62 cents U.S. in 2003, a response that would have been unthinkable a decade earlier. It is perhaps not surprising, then, that beginning in 1998, certain commentators, some of whom had never been happy with inflation targeting in the first place because they had remained sceptical about the stability of the market determined flexible exchange rate that was by then widely understood to be necessary to support it, launched a vigorous campaign to have the regime scrapped in favour of some sort of fixed exchange rate arrangement – a Currency Board based on the US dollar, along Argentinian lines, was one suggestion, and the creation of a North American Monetary Union on the then brand new European model was another (See e.g. Courchene and Richard Harris 1999 and Herbert Grubel 1999).23 Such proposals caused a considerable stir among the informed public, with some of their proponents (see e.g. Sherry Cooper 2001) going so far as to argue that spontaneous dollarization of the Canadian economy was already well under way and gathering speed, so that the formal and quick adoption by Canada of the US dollar as its domestic currency was the only viable monetary policy option left open. Bank of Canada researchers easily enough rebutted such allegations about the facts of the case (See John Murray and Powell 2002); and ultimately, as the exchange rate rebounded from its 2003 low – it reached a high of $1.07 for a day or so in 2006 - these schemes lost political traction. Meanwhile, in 2001 the “interim” 2 percent inflation target that had been inherited from the impasse of 1993, and had then been renewed in 1998, was renewed once more. Another renewal followed in 2006, accompanied by the

23 It is hard to resist the conclusion that there was an element of me-too-ism about the enthusiasm for such schemes. In the late 1990s the Argentinian currency board seemed to be stable and successful, having survived the tests posed for it by the Tequila crisis, and Europe was in the process of launching the Euro. And of course, the ups and downs of the Canadian dollar since the advent of inflation targeting had helped perpetuate in some circles the very legitimate doubts about flexible exchange rate stability that the experience of the 1970s and 80s had created. An important element in the case against such fears was Bank of Canada Research (Robert Amano and Simon van Norden 1995) arguing that these variations largely reflected terms of trade effects, particularly those emanating from international markets in general, and that for oil in particular, which played an independent role in what came to be called “the Bank of Canada” equation. This work proved not only to be replicable, but also to generate results that continued to hold as new data emerged. In particular, the oil price which had taken a positive coefficient for earlier years, when Canada was a net importer, switched signs, as it should have done, when Canada became a net oil exporter. For a further discussion, see Laidler and Robson (2004, pp. 164-167) 20 promise that a systematic review of other options would be undertaken prior to 2011.

The Marginalisation of the Monetary Aggregates As noted earlier, between 1975 and 1982, the Bank of Canada had tried and largely failed to bring inflation under control by gradually reducing the rate of growth of a narrow monetary aggregate. The reasons for this disappointment are nowadays not controversial (see e.g. Howitt 2001, 2012)), and were already being perceptively documented by Couchene (e.g. 1977, 1981) while the program was still in place. To begin with, the policy was introduced so gradually that it failed to generate any immediately obvious effects that might have helped it gain credibility. In addition, the economic significance of the particular aggregate, the rather narrow M1, being targeted kept changing. This was partly in response to the development of new computing technology that affected the types of chequable deposits that banks could economically offer their customers, partly to the incentives to adopt such innovations that high nominal interest rates generated by inflation were creating, and partly to the very existence of the M1 targeting program itself, a manifestation of what would later come to be called the “Lucas critique” and/or “Goodhart’s law”, but which Courchene (1977) called “the Heisenberg principle” citing Kenneth Boulding (1966) as the idea’s originator. Also central to Courchene’s critique was his skepticism about the Bank’s decision to implement its program by relying on the sensitivity of the demand for money to the same short term interest rates that already served - and would continue to serve right down to the present - as its immediate policy targets, and thus to treat money growth as if it were a passively endogenous demand-driven indicator of monetary policy’s stance. Between 1975 and 1982, all the action in the Bank’s vision of the transmission mechanism underlying its monetary gradualism came from the effects on aggregate demand of the changes in interest rates (or, more broadly, monetary conditions) that seemed to be needed to keep this indicator on track. Money itself had no causative role in the Bank’s conception of these matters. This interpretation of the place of the monetary aggregates in the policy process foreshadowed, in most of its essentials, the role (or rather lack thereof) accorded to them in today’s standard model, and, following Woodford (2003), is nowadays widely understood to imply that policy makers may safely ignore the monetary aggregates altogether, even as indicators. Such a view provides the theoretical basis for their virtual disappearance from today’s mainstream policy discussions (see Freedman (2003), Howitt 2012). This last implication was not fully grasped, let alone accepted, in the 1980s and early ‘90s, however, but later in the decade it did explicitly feature in the Bank’s explanation of why the aggregates

21 were omitted from the formal structure of its then new Quarterly Projection Model (see Coletti et al., 1996, p.123), a system which subsequently evolved into today’s Terms-of-Trade Economic Model, (ToTEM). Be that as it may, when it came to the transmission mechanism, the Hanson lecture was following already well-established Bank of Canada practice in pointedly ignoring money, except for a single passing assertion that “disequilibrium between the supply and demand for money” (along with “non- price rationing” and “some mysterious ‘black box’”) had no role to play. Instead, it described the linkages between central bank actions and their ultimate effects on the economy . . . as follows. The Bank of Canada, by increasing or decreasing the supply of settlement balances to financial institutions, directly influences the very shortest term interest rates in the Canadian money market. Movements in these rates in turn influence the whole spectrum of market and administered interest rates and rates of return on a wide variety of assets and liabilities and, through them, the exchange value of the Canadian dollar. The movements of various rates of return and the price of foreign exchange affect over time total spending in the economy.” (Crow 1988a, p.9) Although this analysis is essentially the same (though less formally expressed) as that appearing in open economy versions of today’s standard model, when it came to what it called “The Use of Policy Guides” the Hanson lecture extensively discussed work then in progress at the Bank on the stability of various empirical relationships involving monetary aggregates - particularly those that showed narrow money to be an important leading indicator of real activity, and broad money of the inflation rate. The questions implicit here about how monetary aggregates can be useful leading indicators of output and inflation without also playing a causative role in their determination were soon recognised. In the early 1990s some Bank researchers began to take seriously the idea that money might indeed play an active role in the policy-transmission mechanism (see Laidler and Robson 1993, pp. 116- 119), though earlier scepticism about this possibility also continued to be given its due, notably in Duguay’s already mentioned (1994) study, which presented an empirically estimated formal model of the mechanisms outlined in the Hansen lecture. Only the absence of an explicit policy reaction equation akin to a Taylor rule differentiates Duguay’s system from today’s standard model.24

24 Indeed, Duguay and Poloz (1994), in what amounts to a companion piece to this paper, dealing specifically with the use of model-based projections in the Bank’s policy decision making, describe the latter process as being “pragmatic . . . There are no simple rules, but rather a process of successive approximation anchored by a firm long term commitment to price stability” (p.197). Interestingly, neither of these papers refers to Taylor (1993). Note that Duguay (1994) did discuss the significance of both 22

From the early 1990s onwards, the Bank’s research followed both tracks simultaneously, in what came to be called a “multiple paradigms” approach to monetary policy analysis (see e.g. Walter Engert and Selody 1998, David Longworth 2003, Laidler 1999, 2003b). In 2003, however, work on a possibly causative role for the monetary aggregates, and also on their usefulness as leading indicators, was to all intents and purposes abandoned, with the termination of the so-called “Blue Book” project that the Bank had set in motion in 1999. 25 This project had been given the task of generating policy advice explicitly based on the aggregates’ behaviour, as a counterweight to more conventional work, which by this time centered around the Bank’s already mentioned, and by then conventional (calibrated rather than estimated) dynamic stochastic general equilibrium Quarterly Projection Model (QPM). Experience during the Blue Book project’s four year lifespan, which coincided with the middle of the Great Moderation, appeared to confirm scepticism about money’s capacity to add anything useful to insights generated by the standard approach to inflation targeting embodied in QPM, supplemented in the Canadian case by the Bank’s regular regional surveys of economic conditions, intentions and expectations. Policy recommendations emerging from the project seemed usually to be based on informal judgements about the economic situation, rather than assessments explicitly based on the behaviour of the aggregates 26 It remains to be seen whether the Bank’s 2003 decision to push the monetary aggregates to the very margins of policy research and practice was wise for the longer run. John Stuart Mill’s (1848) much quoted obiter dictum has it that

broad and narrow monetary aggregates as leading indicators of output and inflation, but not as components of the transmission mechanism itself.

25 Note that the 1990s saw an evolution of the Bank of Canada’s operating procedures which adapted them ever more closely to the requirements of practices based on today’s standard model and also made them less obviously suitable for controlling money growth. First of all, in 1994, the focus of the Bank’s operations to control interest rates was shifted from the market for three month treasury bills to that for overnight loans in the market for balances, while reserve requirements were phased out. The electronic “large value transfer system” became the central feature of the clearing system at the end of the 1990s, with the Bank setting a target for the overnight rate ruling therein, fixing its discount rate at 25 basis points higher, and the interest rate on clearing balanced held with it 25 basis points lower than this target. After encountering difficulties with a policy of providing zero overnight balances to this market, the Bank took to providing an extremely low level of cash reserves, unrelated to the level of its interest rate target, to “lubricate” it. In 2000, the Bank also moved to a system of announcing its target for the overnight rate at regular (six week) intervals, rather than only as and when conditions seemed to require a change in this variable. The system in place since 2000 thus resembles, in all its essentials, the “corridor system” described by Woodford (2003, Ch. 3), as he acknowledges.

26 Freedman (2003 pp. 137-140) gives an account of the Bank of Canada’s Blue Book project and the reasons for its abandonment in the course of a wide ranging account of the declining attention paid in recent years to monetary aggregates by a central banks in general. 23

“There cannot . . . be a more intrinsically insignificant thing, in the economy of society, than money: . . . It is a machine for doing quickly and commodiously, what would be done, though less quickly and commodiously, without it: and like many other kinds of machinery, it only exerts a distinct and independent influence of its own when it gets out of order.” (Mill (1848, (1872)) p. 488) During 1999-2003 the machine in question, not least in Canada, was very much in order and functioning smoothly, and any influence of money on the real economy and the inflation rate could not help but be essentially invisible. But since 2007 that same machinery has been acting up, and so have the real economy and the inflation rate, though less so in Canada than in many other places. Perhaps, then, evidence generated since 2007, particularly in jurisdictions that have encountered more instability than Canada, might reveal a distinct role for money after all, either causative or as a useful indicator, and perhaps widely held current beliefs about the irrelevance of the monetary aggregates in the policy process will turn out to be one of those apparently settled pieces of macroeconomic wisdom that from time to time find themselves in need of re-assessment in the light of new experience. But for the moment, the monetary aggregates remain marginalised in discussions of Canada’s inflation targeting regime, let alone in the day to day formulation of policy. 27

Ideas, Events and Inflation Targeting in Retrospect Despite the immediate distractions created by the Great Recession, the Bank of Canada undertook substantial work on the possibilities for changing the policy regime in 2011 (see Bank of Canada 2011). 28 In particular, the options of lowering the targeted inflation rate, and/or of shifting to a target time path for the price level, received serious consideration. But from 1995 to 2007 when the Recession started, actual inflation had averaged almost exactly 2 percent, while that event’s local version was the first to occur in Canada since 1991. It is not surprising that, in

27 In the U.K. Tim Congdon (e.g. 2012) continues to advocate a central role for broad money in both the analysis of macroeconomic behaviour and the conduct of monetary policy, as of course in Europe and the US do self-styled “market monetarist” bloggers such as (The Money Illusion) and Lars Christensen (The Market Monetarist). In the US also, William Barnett (e.g. 2012), Michael Belongia and Peter Ireland (e.g. 2015) continue to promote the virtues of Divisia aggregates.

28 The recession in Canada was sharp, though the financial system remained stable – beyond some serious but localised 2007 problems in the market for asset backed commercial paper. The Bank of Canada nevertheless introduced a number of special liquidity schemes, and also for a while found it necessary to provide extra settlement balances to the clearing system, though there was no resort to based on outright asset purchases. The Bank also gave conditional forward guidance about the likely duration of its resort to rock bottom interest rates that seems to have worked well – unlike its earlier efforts in 1998. Nevertheless, at the time of writing, and under a new Governor, the Bank has explicitly announced that it will only use this tool in future under rare circumstances. 24

2011, the authorities decided to stick with the existing regime for a further five years, albeit embellished with an explicit recognition of the need for some flexibility in the face of financial turbulence. It had simply not been possible to establish with sufficient confidence that replacing it with something more ambitious would yield worthwhile gains. Thus a target that had been set two decades earlier as an interim goal along the path from uncomfortably high inflation to a state of price stability, and had been supported by a monetary policy framework that evolved into rather close conformity to what is by now the standard macroeconomic policy model in the academic literature, gained yet another lease on life. This paper has tried to account for how this came about, paying particular attention to the ways in which economic ideas influenced policies, which in due course created events, which then, in their own turn, sometimes caused those ideas to be modified or even replaced altogether; and so on, in a recursive process. Early in the story, when Governor Crow delivered the Hanson Lecture, competing ideas about the stability of inflation were in circulation in Canada. A substantial body of academic opinion had it that any fully anticipated inflation rate could be stable over time. The Governor and his colleagues, on the other hand, held a different and older view: namely, that anything short of price stability would likely generate expectations about inflation’s future behaviour that would undermine the credibility of monetary policy and the stability of its outcomes. This latter idea initially dominated the conduct of monetary policy. Only after the recession of 1990-91 did its competitor begin to exert influence, not because, at this early stage, it had obviously won some empirical contest, but because the political consequences of the recession in question required a change in policy’s stance. Now, however, after two decades of what used to be called “creeping” inflation deliberately and successfully supported by policy, it is surely clear that to base policy on the idea that low inflation can be stable was a step in the right direction, and that this idea’s confirmation by experience has provided much of the basis for inflation targeting’s longevity in Canada. A closely related academic idea, however, namely the natural unemployment rate hypothesis, played essentially no role in shaping Canadian monetary policy after 1988 - despite the arguments of Akerlof and Shiller (2009) to the contrary. Even so, we have seen that it was not policies based on the Bank of Canada’s particular beliefs about the instability of inflation itself that derailed its initial program in 1990-91; rather it was measures derived from views on the potentially destabilising effects on inflation of exchange rate movements. These views’ influence also began to fade after 1993, and essentially vanished after 1998, again in the light of experience, and they were replaced by competing beliefs

25 drawn from the academic literature. The latter, deriving from Friedman’s (1953) analysis, had it that domestic monetary stability would itself support exchange rate stability and that supplementary attempts to influence the exchange rate directly were likely to interfere with that domestic stability. The growing dominance of these beliefs among policy makers from the early 1990s onwards also contributed to the success, and hence to the credibility and longevity, of Canadian inflation targeting. In these two instances, then, ideas originating among academics began to influence policy under pressure from events, and proved robust in the face of the experience that their application then generated. But the intellectual traffic was not one way. The Bank of Canada’s relocation of monetary policy’s “place to stand” from an intermediate variable - such as a target for money growth - to an ultimate one – a goal for the behaviour of the price level itself - represented a major break with much of the conventional policy wisdom of the 1980s, and even when the pursuit of price stability gave way to the maintenance of low inflation, this emphasis on policy’s ultimate goal remained in place. Among academics, the prevailing view well in to the 1990s remained that the complicated and drawn out lag structure of the transmission mechanism would render such an approach to monetary policy dangerously prone to instability. Nowadays, on the contrary, it is just as much conventional academic wisdom that confidence among economic agents about the price level’s future behaviour, based upon credible policy targets, provides a firm anchor for the control of inflation. In this instance, then, the central bankers proved to be right, and academic discourse has imported their point of view. Now ex post, the widespread acceptance of this way of looking at things can be rationalised as reflecting the influence of the hypothesis on the theory and practice of monetary policy; and certainly, during the 1980s and ‘90s, the latter hypothesis did indeed become dominant in mainstream academic thinking. Furthermore the origins of many other components of today’s standard monetary policy model also lie in the academic literature of this period. But, as we have seen, by 1996, when this model’s basic characteristics were finally incorporated into the Bank of Canada’s own principal policy model, QPM, inflation targeting as we currently know it was already a going and credible concern, while informal versions of many of them had in any case been well embedded in Bank thinking from the outset. The history documented in this paper thus suggests that the standard model’s development by academics, including its deployment of the rational expectations hypothesis, had no direct causative influence on the evolution of Canadian inflation targeting in the years when the regime was becoming established. Rather what seems to have happened is that, in the second half of the 1990s, two parallel developments, one originating in the

26 theoretical academic literature, and the other grounded in practical policy experience, came together. In any event, perhaps Canadian inflation targeting’s robustness, consistent though it is with agents being guided by rational expectations, in fact resulted simply from them adapting their behavioural rules of thumb to experience after the regime’s inception, and then finding that these adapted rules worked. Now, as throughout the regime’s evolution, then, competing and contradictory ideas about how monetary policy works are in circulation, and ideas that matter too – for example for the choice between inflation and price level targeting - as the Bank of Canada is well aware (see, e.g. Bank of Canada (2011), Amano et al (2009), and Amano et al. 2011). Furthermore, even after 2011’s cautious decision to retain simple inflation targets for another five years, the case for price level targeting is still being made (see e.g. Steven Ambler 2014) and debate about this matter is likely to intensify as 2016 approaches.29 Many questions about whether and how to introduce more flexibility into the monetary policy framework so that it can deal with asset market turbulence as and when this arises also remain open. The interaction of economic ideas and experience is an ever present feature of the theory and practise of monetary policy, and it is going on as vigorously now as it ever did. Who knows how current discussions, not to mention the experience their outcomes will generate, will evolve?

29Furthermore, in both Europe and the US, “market ” (see fn. 27) has revived proposals, popular for a while in Canada in the mid-1980s, for setting targets for nominal GDP; in doing so, it has placed yet another coherent plan on the agenda, though it does not seem to have attracted any advocates in Canada as yet. 27

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